Projectile.



J. KUHN & J. A. GUILER.

PBOJECTILE. @PPLlcATloN FILED Aua.26. '1918.

Patented 11630.17, 1918.

f man.

JACOB KUHN AND JOHN A. GUILER, OF CONNELLSVILLE, PENNSYLVANIA.

rRoJEcTrLE.

Specification of Letters Patent.

, Patented Dec. 17, i918.

Application filed August 26, 1918. Serial No. 251,522.

To all 'whom it may concern Be it known that we, JACOB KUHN and JOHN A.GUiLER, citizens of the United States, and residents of Connellsville,in the 'county of Fayette and `State of Pennsyl- .gun barrel through.which the Aprojectile is forced.

More specifically, the invention comprehends the provision of aprojectile provided with a pluralityv of` circumferentially spacedlongitudinally vextending ribs or strips, de-

tachablyca'rried by the body of the prov jecti'le and formed of arelatively. soft metal, which may be grip'p'ed or will blte into therifle of the gun barrel, without cutting the rifling of the gun barrel.

Other objectsof the invention will appear in the following detaileddescription, taken in connection with the accompanying drawing, formingapart of this specification, and in which drawlng:

Figure 1 is a sideelevation of a projectile constructed in accordancewith this invention. Y

Fig. 2 is a fragmentary longitudinal section throughthe projectile.

Fig. 3 isa transverse section taken on the line 3-'3'of Fig. 1.

Referring more particularly to the drawl ing, 1 indicates theprojectile, which may be a shrapnel shell, rifle bullet, solidprojectile,

4or any of the many types now in use. The

projectile 1 provided witlra plurality of circumferentially spacedlongitudinally extending dovetail recesses 2, the forward ends of,whichterminate in substantially circularv recesses. 3 near 'the nose orpointed end of the projectile. Strips 3 of soft metal, such as copper orthe like, are inserted in the recesses 2, the said strips beingdove-tail in cross section for fitting snugly within the reoesses so asto prevent the strips frownspringing therefrom and these strips 3 haveplugs 4 formed upon their forward ends which fit in the substantiallycircular recesses 3. The recesses `2 communicate with jectile through athe butt end. of the projectile, and in assembling the same, the strips3 of the relatively soft metal are drivennwardly from the butt ends ofthe rojectile, and when they are completely riven therein, their forwardends are upset Vand hammered into the recesses 3', to 4-prevent.longitudinal movement of the stripsduring the passage of the prounbarrel.

Changes in details may be made withou lparting from the spirit of thisinvention,

nt; We claim:

1. A projectile provided with a plurality of longitudinally extendingdove tailed grooves, and strips of relatively soft metal in said groovesand projecting beyond the periphery of the projectile.

2. A projectile provided with a plurality of circumferentially spacelongitudinally eX- tending grooves, strips of relatively soft metalmounted in said grooves and projecting beyond the outer surface of theprojectle, and means to preventmovement of said strips within saidgrooves.

3. A projectile provided witha plurality of longitudinally extending'dove-tailed `grooves, strips of relatively soft*E metal mounted in saidgrooves and projecting beyond the outer surface of the projectile, andmeans to prevent longitudinal movement of said strips independent ofsaid projectile.

4. A projectile provided with a plurality of longitudinally extendingdove-tailedgrooves'opening at the butt end of the projectile andterminatin in sockets near the nose end of the project1le, strips ofrelatively soft metal positioned insaid grooves and projecting beyondthe outer surface of the projectile, said strips having their forwardends upset and hammered into said sockets to prevent longitudinal.movement of the stripswith respect to the projectile.

5. A projectile provided with a plurality of longitudinally extendingrooves opening outat the butt end of t e rojectile and terminating inthe nose thereof metal strips positioned in said grooves and means toprevent the movement of the strips independently of the projectile.

